Problem with set event

[wojtkuju]

Hello, I have 2 dates:
15-01-2015 14:00, timestamp: 1421330400
15-01-2015 15:00, timestamp: 1421334000
and I want to set Event like this:
@OverRide
public List onMonthChange(int newYear, int newMonth) {

    List<WeekViewEvent> events = new ArrayList<WeekViewEvent>();

    GregorianCalendar startTime = new GregorianCalendar();
    startTime.setTimeInMillis(1421330400*1000);
    GregorianCalendar endTime = new GregorianCalendar();
    endTime.setTimeInMillis(1421334000*1000);

    WeekViewEvent event = new WeekViewEvent(1, getEventTitle(startTime), startTime.get(Calendar.YEAR) , startTime.get(Calendar.MONTH), startTime.get(Calendar.DAY_OF_MONTH), startTime.get(Calendar.HOUR_OF_DAY), startTime.get(Calendar.MINUTE), endTime.get(Calendar.YEAR) , endTime.get(Calendar.MONTH), endTime.get(Calendar.DAY_OF_MONTH), endTime.get(Calendar.HOUR_OF_DAY), endTime.get(Calendar.MINUTE));
    event.setColor(getResources().getColor(R.color.event_color_01));
    events.add(event);

    return events;
}

but event don't show on calendar, how to do this?

[entropitor]

Because that WeekViewEvent constructor uses a more logical month index: januari = 1.

But you can construct it using
new WeekViewEvent(1, getEventTitle(startTime), startTime, endTime)

@alamkanak this issue can be closed.

[wojtkuju]

It's ok?
WeekViewEvent event = new WeekViewEvent(1, getEventTitle(startTime), startTime.get(Calendar.YEAR) , startTime.get(Calendar.MONTH) + 1, startTime.get(Calendar.DAY_OF_MONTH), startTime.get(Calendar.HOUR_OF_DAY), startTime.get(Calendar.MINUTE), endTime.get(Calendar.YEAR) , endTime.get(Calendar.MONTH) +1, endTime.get(Calendar.DAY_OF_MONTH), endTime.get(Calendar.HOUR_OF_DAY), endTime.get(Calendar.MINUTE));

[entropitor]

yes, but I don't see why you don't just pass in the calendar objects. Now the calendar objects are "destructed" by you to be constructed again in the library...

[wojtkuju]

new WeekViewEvent(1, getEventTitle(startTime), startTime, endTime)
that don't work, event don't show, as it should be properly?

[entropitor]

Have you taken a look at the sample app? https://github.com/alamkanak/Android-Week-View/blob/master/sample/src/main/java/com/alamkanak/weekview/sample/MainActivity.java#L107

[wojtkuju]

Yes it works, but i have timestamp and I don't know how use timestamp.

[entropitor]

Calender start = Calender.getInstance();
start.setTimeInMillis(1421330400000)
Calender end = Calender.getInstance();
end.setTimeInMillis(1421330400000)

events.add(new WeekViewEvent(1, getEventTitle(start), startTime, endTime))

PS remember that the newMonth from the onMonthChangeListener is also 1-based instead of 0-based.

[wojtkuju]

Still don't work:
Calendar start = Calendar.getInstance();
start.setTimeInMillis(1421330400000L);
Calendar end = Calendar.getInstance();
end.setTimeInMillis(1421330400000L);

    events.add(new WeekViewEvent(1, getEventTitle(start), start, end));

[entropitor]

end.setTimeInMillis(1421334000L);

You were passing in an event that last for 0 milliseconds.

[wojtkuju]

14213304000 = Tue, 26 May 2420 20:00:00 GMT

[entropitor]

I meant end.setTimeInMillis(1421334000000L);

=>
start.setTimeInMillis(1421330400000L);
end.setTimeInMillis(1421334000000L);

[wojtkuju]

When i set like this:
start.setTimeInMillis(1421330400000L);
end.setTimeInMillis(1421334000000L);
my calendar view it's like this:
http://oi59.tinypic.com/4ine5c.jpg

[wojtkuju]

Why when I set event like this:
@OverRide
public List onMonthChange(int newYear, int newMonth) {

    List<WeekViewEvent> events = new ArrayList<WeekViewEvent>();

    Calendar  start = Calendar.getInstance();
    start.set(Calendar.HOUR_OF_DAY, 16);
    start.set(Calendar.MINUTE, 0);
    start.set(Calendar.DAY_OF_MONTH, 15);
    start.set(Calendar.MONTH, 2);
    start.set(Calendar.YEAR, 2015);
    Calendar end = (Calendar) start.clone();
    end.set(Calendar.HOUR_OF_DAY, 17);


    WeekViewEvent event = new WeekViewEvent(10, getEventTitle(start), start, end);
    event.setColor(getResources().getColor(R.color.event_color_03));
    events.add(event);

    return events;
}

calendar views like this:
http://oi59.tinypic.com/10saihc.jpg

[entropitor]

onMonthChange is called three times (when you don't scroll)
This is in the README!

Please remember that the calendar pre-loads events of three consecutive months to enable lag-free scrolling.

That's why it's being shown multiple times.

(You have to take in account the newMonth and newYear variables. They are there for a reason)

[wojtkuju]

so I do not think it should be?

[wojtkuju]

I really do not know how I set the event for example 15-01-2015. So that two months after scrolling forward and return to the event, was displayed only once?

[entropitor]

just only add it if newMonth==1 and newYear==2015

[wojtkuju]

This is a bad idea, because I have list with dates, ie: 15-01-2015, 23-03-2015, 07-06-2015...and I have set all dates.

[entropitor]

This seriously doesn't belong in an issue for this library.

Just only add the events which have a matching month and year (matching = event falls in the month that is requested by newMonth and newYear: event.getMonth() == newMonth && event.getYear() == newYear). That's what I am saying.
When you scroll, eventually the right month will be requested and the event will be loaded.

[wojtkuju]

Please show me example.

[entropitor]

Remember this is pseudo-code, not real java code

weekviewEvents = new ArrayList()
for(Event event : allEvents){
    if(event.getMonth() == newMonth && event.getYear() == newYear){
         weekviewEvents.add(event)
    }
}
return weekviewEvents

[wojtkuju]

This is my code, event don't show:
List events = new ArrayList();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_my);

    // Get a reference for the week view in the layout.
    mWeekView = (WeekView) findViewById(R.id.weekView);

    DateTimeInterpreter dateTimeInterpreter = new DateTimeInterpreter() {
        @Override
        public String interpretDate(Calendar calendar) {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy");
            return simpleDateFormat.format(calendar.getTime());
        }

        @Override
        public String interpretTime(int i) {
            return String.valueOf(i + ":00");
        }
    };
    mWeekView.setDateTimeInterpreter(dateTimeInterpreter);
    mWeekView.setOnEventClickListener(this);
    mWeekView.setMonthChangeListener(this);
    mWeekView.setNumberOfVisibleDays(1);

    // Lets change some dimensions to best fit the view.
    mWeekView.setColumnGap((int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 8, getResources().getDisplayMetrics()));
    mWeekView.setTextSize((int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 12, getResources().getDisplayMetrics()));
    mWeekView.setEventTextSize((int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, 12, getResources().getDisplayMetrics()));


    Calendar startTime = Calendar.getInstance();
    Calendar endTime = Calendar.getInstance();

    startTime.setTimeInMillis(1421506800 * 1000L);
    endTime.setTimeInMillis(1421510400 * 1000L);
    WeekViewEvent event = new WeekViewEvent(1, "fddsdsdsd", startTime, endTime);
    event.setColor(getResources().getColor(R.color.event_color_01));
    events.add(event);
}

@Override
public List<WeekViewEvent> onMonthChange(int newYear, int newMonth) {
    List<WeekViewEvent> weekviewEvents = new ArrayList<WeekViewEvent>();
    for (WeekViewEvent event : events) {
        if(event.getStartTime().get(Calendar.MONTH) == newMonth && event.getStartTime().get(Calendar.YEAR) == newYear){
            weekviewEvents.add(event);
        }
    }

    return weekviewEvents;
}

[entropitor]

How many times do I need to say that newMonth is 1-based and Calendar is 0-based?

=> event.getStartTime().get(Calendar.MONTH)+1 == newMonth

[wojtkuju]

Sorry my fault, now i have that code:
Calendar startTime = Calendar.getInstance();
Calendar endTime = Calendar.getInstance();

    startTime.setTimeInMillis(1421506800 * 1000L);
    endTime.setTimeInMillis(1421510400 * 1000L);
    WeekViewEvent event = new WeekViewEvent(1, "first event", startTime, endTime);
    event.setColor(getResources().getColor(R.color.event_color_01));
    events.add(event);

    startTime.setTimeInMillis(1421596800 * 1000L);
    endTime.setTimeInMillis(1421600400 * 1000L);
    event = new WeekViewEvent(1, "second event", startTime, endTime);
    event.setColor(getResources().getColor(R.color.event_color_01));
    events.add(event);
}

@Override
public List<WeekViewEvent> onMonthChange(int newYear, int newMonth) {
    List<WeekViewEvent> weekviewEvents = new ArrayList<WeekViewEvent>();
    for (WeekViewEvent event : events) {
        if(event.getStartTime().get(Calendar.MONTH)+1 == newMonth && event.getStartTime().get(Calendar.YEAR) == newYear){
            weekviewEvents.add(event);
        }
    }

    return weekviewEvents;
}

and my calendar look like this
http://oi57.tinypic.com/14xz790.jpg

[entropitor]

I'm guessing you should pass in a different id for the second event...

[wojtkuju]

I change id and doesn't work.

[entropitor]

you have to create new instances of the Calendar object (startTime, endTime) for your second event, otherwise you change the time of the first event too.

[KimPark89]

Yes, caske33's answer is right. I had a similar problem and I lost about half day of work to resolve it.

Btw i don't understand why this API preloads 3 months events.
You must add your events by matching your actual month and year with nextMonth and nextYear variables of onMonthChange for avoiding the creations of duplicate events, but in this way you lose the benefit of the 3 months preload.
So probably it's better adding the matching also for your previous and following month events, but in this case you have again the "duplicate events problem".

[entropitor]

The reason why there's a 3 month preload is to smooth the swiping. This way the library won't have to wait for you to provide the events when the user scrolls to the next month, they will already be loaded.

And most people don't match all their events with the nextMonth and nextYear variables but they load their events based on those variables (e.g. they look in the database for the events that fall within the month requested)

[KimPark89]

Thank you, i undestand.

[alamkanak]

Answer from @caske33 is correct